With the resurgence of the consumer industry, television manufacturers are actively seeking cutting-edge technology to support all of China's TV broadcast signals and operational modes, while simultaneously lowering production costs and accelerating time-to-market. Additionally, the ultra-slim TVs showcased at CES this year have also pushed semiconductor manufacturers to develop thinner and lighter devices.
Maitong has recently introduced a cost-effective DTV receiver chip solution tailored for the Chinese market. This innovative solution integrates both a tuner and a demodulator (Demod) into a single chip. The highly integrated DTV chip not only simplifies the front-end design for TV manufacturers but also reduces costs and enhances reliability. It enables Chinese TV manufacturers to deliver superior terrestrial and cable TV reception across various sizes, models, and price points.
**Key Features: Integrated Modem**
The high-performance DTV receiver chip from Maitong consists of the MT3141 multi-standard RF receiver chip and the new MT886x family of demodulators. This chip solution is built on well-established technology and complies with China’s digital TV terrestrial transmission standard GB20600-2006 (CTTB/DTMB), surpassing the RF and channel demodulation requirements set by the China Electronics Standardization Institute (CESI).
According to Pete Birch, Director and Global DTV Business General Manager, “Most competitors offer either a pure tuner or a demodulator. Our key breakthrough lies in integrating the tuner and analog TV demodulator into one device.†He added that the chipset is based on Maitong’s new MT3141 receiver and includes one of four CTTB-compliant channel demodulators from the MT886x family. The patented FADE (Fading and Equalization) architecture ensures excellent performance, significantly improving end-user TV reception.
The MT3141 is a complete RF-to-baseband, single-chip, multi-standard tuner that includes an integrated PAL/SECAM/NTSC analog demodulator. It is designed with exceptional sensitivity and strong adjacent-channel rejection. These advanced technical specifications directly translate into improved DTV signal coverage and better TV reception quality. The MT886x series of chips is designed to minimize the need for external components, integrating memory that supports all CTTB operating modes in China and Hong Kong. As a true system-on-a-chip, this integration helps reduce the bill of materials and protects TV manufacturers from fluctuating DRAM prices, which can be a challenge for those using SIP or MCM technologies.
“Combining the tuner and demodulator offers significant technological and cost advantages,†said Pete Birch. “Customers have responded very positively to this solution. The MT3141 is just the first in this series, and we plan to release more national standard products in the future.†He emphasized that the series is designed to be compatible across different regions, helping TV manufacturers save on field and design costs while improving overall production control and design quality. Moreover, the MT3141 provides world-class receiver solutions for Chinese TV manufacturers aiming to expand into overseas markets.
**Target Application: Local Triple Play**
China has been pushing forward with its strategy to accelerate the "three networks integration." In response, Maitong’s latest MT3141 chip is well-prepared for this trend. First, it directly supports set-top box solutions, with QAM256 and QAM64 offering excellent performance. Second, it includes OOB (Out-of-Band) channel functions specifically designed for this market, such as low-power amplifiers and corresponding filters. This makes the chip ideal for use in "triple play" digital interactive set-top boxes.
Traditionally, basic set-top boxes only needed one tuner for receiving signals. However, in the high-definition era, operators are looking to add value through services like video or picture-in-picture, increasing the demand from one tuner to two. In the U.S., cable TV set-top boxes typically use silicon tuners, but in China, the market is still transitioning from CAN tuners to silicon tuners. This shift is expected to take between 8 months to 2 years.
Pete Birch also noted that many local manufacturers already have their own modem solutions and benefit from certain policy advantages, making it easier for them to promote their products domestically. However, Maitong’s products are developed, manufactured, and packaged in China, with sales and support also handled locally. While there may be some policy-related challenges, Birch remains optimistic about the chip’s high performance and low cost. Maitong has developed two generations of digital TV chips for the Chinese market, and this third-generation chip is specifically designed for China’s digital TV standards. All products for the Chinese market are developed within China, ensuring a deep understanding of local needs.
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